/**
 * MCP Update Checker
 * Detects version updates for installed MCPs and manages cache invalidation
 */
export interface MCPVersionInfo {
    name: string;
    currentVersion: string;
    latestVersion?: string;
    hasUpdate: boolean;
    lastChecked?: number;
}
export declare class MCPUpdateChecker {
    private cacheFile;
    private readonly checkInterval;
    private inFlightRequests;
    constructor();
    private loadCache;
    private saveCache;
    /**
     * Fetch latest version from npm registry with deduplication
     * Prevents duplicate requests if multiple tools call this simultaneously
     */
    private fetchLatestVersionFromNpm;
    /**
     * Compare semantic versions
     * Returns true if latestVersion > currentVersion
     */
    private compareVersions;
    /**
     * Check for updates for a specific MCP
     */
    checkMCPUpdate(mcpName: string, currentVersion: string, packageName?: string): Promise<MCPVersionInfo>;
    /**
     * Get inline notification message for outdated MCP
     */
    getUpdateNotification(mcpInfo: MCPVersionInfo): string | null;
    /**
     * Record that notification was shown to avoid spam
     */
    markNotificationShown(mcpName: string): void;
    /**
     * Check if notification should be shown (once per day per MCP)
     */
    shouldShowNotification(mcpName: string): boolean;
    /**
     * Clear version cache for an MCP (called after update)
     */
    invalidateMCPCache(mcpName: string): void;
    /**
     * Get all MCPs with available updates
     */
    checkAllMCPUpdates(mcps: Array<{
        name: string;
        version: string;
        packageName?: string;
    }>): Promise<MCPVersionInfo[]>;
}
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